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What does a lazy val do?
... is defined whereas a lazy val is executed when it is accessed the first time.
scala> val x = { println("x"); 15 }
x
x: Int = 15
scala> lazy val y = { println("y"); 13 }
y: Int = <lazy>
scala> x
res2: Int = 15
scala> y
y
res3: Int = 13
scala> y
res4: Int = 13
In contrast ...
Can you connect to Amazon ElastiСache Redis outside of Amazon?
... answer above was accurate when written, however it is now possible with some configuation to access redis cache from outside using the directions approximately 1/2 way down this page: https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/accessing-elasticache.html#access-from-outside-aws
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How to run Unix shell script from Java code?
...cript.sh", "myArg1", "myArg2");
Map<String, String> env = pb.environment();
env.put("VAR1", "myValue");
env.remove("OTHERVAR");
env.put("VAR2", env.get("VAR1") + "suffix");
pb.directory(new File("myDir"));
Process p = pb.start();
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Can an Android NFC phone act as an NFC tag?
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At this time, I would answer "no" or "with difficulty", but that could change over time as the android NFC API evolves.
There are three modes of NFC interaction:
Reader-Writer: The phone reads tags and writes to them. It's not emul...
Python - 'ascii' codec can't decode byte
... @WinstonEwert I guess I was confused. The encoding business tend to leave me eternally confused. I guess my confusion came from my own problem of not knowing the if the input is a string or unicode string and what encoding it may have.
– deinonychusaur
Jul 31 ...
Create nice column output in python
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The name longest is misleading beacuse it's not the longest element but the max_length. BTW the longest could be taken with something like: max((w for sub in data for w in sub), key=len). [P.S. I wasn't the one to downvote]
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How to avoid “ConcurrentModificationException” while removing elements from `ArrayList` while iterat
I'm trying to remove some elements from an ArrayList while iterating it like this:
10 Answers
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Where to find Java JDK Source Code? [closed]
I would like to see what a method in the Java API does. So I want the JDK Source Code.
Before I re-installed Linux I had the src.zip package with all the official source code in it. I just had to tell Eclipse where this file is and I could see the code. But now I don't have the file anymore...
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Animated loading image in picasso
...wables. Is there a way to get it working with Picasso or do I have to do something different?
9 Answers
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